Stamping wheel



C. W. SCHOTT STAMPING WHEEL Feb. 12, 1952 Filed July 1, 1948 [Wei Liar.-(#49155 #150707:

ll llill Patented Feb. 12, 1952 STAMPING WHEEL Charles W. Schctt,Pittsburgh, Pa., assignor to United States Steel Company, a corporationof New Jersey Application July 1, 1948, S erial No.--36', 5 11 2 Claims.(o1. 101 28) This invention relates to improvements in stamping wheelsfor marking steel billets or the like.

An object of the invention is to provide improved stamping wheels inwhich the dies and the wheel mounting are subject to a minimum ofmechanical shock, thereby reducing wear on these parts and prolongingtheir useful life.

A further object of the invention is to provide improved stamping wheelswhich have buffer means for cushioning the initial contact between thewheel and each article, such as a billet or the like, and forautomatically placing the dies in motion at the same linear speedas thearticle before the dies make contact.

In accomplishing these and other objects of the invention, I haveprovided improved details of structure, a preferred form of which isshown in the accompanying drawing, in which:

Figure 1 is an end elevational view of an improved stamping wheelembodying features of the present invention and mounted for markingbillets;

Figure 2 is a side elevational view of the wheel with the face plateremoved to illustrate the mechanism; and

Figure 3 is a sectional view of the wheel taken substantially on lineIII-III of Figure 2.

Referring more in detail to the drawing:

The stamping wheel of the present invention comprises the usual disk Iaround the circumference of which dies l2 are removably affixed. Thewheel is afiixed on a shaft I3 which is rotatably supported in anysuitable mounting, fixed bearings l4 being illustrated. The wheel ismounted over a roller table l5 which forms a course for travel ofarticles l6, such as steel billets or the like. Passing articles engagethe wheel and cause it to rotate and thus the dies imprint marks in theupper surface of the article.

In accordance with the present invention, a plurality of buffer segmentsI! are mounted on the face of disk It! for radial sliding movement. Asshown in Figure 2, the segments form a circular series which extendsaround the entire circumference of the disk. The disk has a plurality ofpegs I8 protruding from its face and each segment has a radial slot l9receiving one of said pegs. Thus engagement of the pegs with theextremities of the slots limits movement of the segments. An annular hub20 of slightly greater thickness than the segments is fixed to shaft 13next to disk l0 and the segments are spaced radially from said hub.Compression springs 2i bear between the outer circumference of hub andthe inner faces of the segments, preferably being received on bosses 22on the hub and segments. The compression springs normally force thesegments outwardly so that they protrude beyond the circumference of thedisk somewhat farther than dies I2, but the segments are retractibleradially against the action of the springs sufficiently to enable thedies subsequently to engage the article and imprint a mark therein. Aretaining plate 23 is carried by shaft l3 over the hub and segments. Theelements are retained in assembled relation by nuts 24 and 25 secured tothe shaft outside the retaining plate and disk respectively.

In operation, as articles [6 approach the wheel, they first engagesuccessive buffer segments I! which are cushioned by springs 2|. Saidsegments and springs absorb the initial shock of engagement, and thusthere is no abrupt shock on the dies nor on the wheel mounting.Engagement of the article with the segments also starts the wheelrotating and by the time the dies engage the article, both the dies andthe article are moving at the same linear speed. Thus wear on the diesis reduced, since contact between the dies and article does not initiatemovement of the wheel.

While I have shown and described only a single embodiment of theinvention, it is apparent that modifications may arise. Therefore, I donot wish to be limited to the disclosure set forth but only by the scopeof the appended claims.

I claim:

1. A stamping wheel for imprinting marks in the surface of movingarticles comprising a disk, dies aifixed to said disk at thecircumference thereof, means rotatably mounting said disk in positionfor the dies to engage passing articles, a hub adjacent said disk, aplurality of buffer segments, means on said disk supporting saidsegments for radial sliding movement on the face of said disk, saidsegments forming a circular series spaced radially from said hub,compression springs between said hub and said segments urging the latteroutwardly, said segments normally protruding from the circumference ofsaid disk beyond said dies to contact articles ahead of said dies andbeing retractible to enable the dies subsequently to engage thearticles, a retaining plate over said hub and said segments, and meansretaining said disk, said hub and said retaining plate in assembledrelation.

2. A stamping wheel for imprinting marks in the surface of movingarticles comprising a shaft, a disk aflixed to said shaft, dies affixedto said 3 disk at the circumference thereof, means rotatably mountingsaid shaft in position ifOl the dies to engage passing articles, a hubon said shaft adjacent said disk, a plurality of pegs protrudingfrom theface of said disk around said hub, a plurality of buffer segments havingslots receiving said pegs, said segments being radially slidable withrespect to said disk and forming a circular series spaced radially fromsaid hub, compression springs between said hub and said segments urgingthe latter outwardly, said segments normally protruding from thecircumference of said disk beyond said dies to contact articles ahead ofsaid dies and being retractible against the action of said springstoenabie the dies subsequently to engage the articles, a retaining plateon said shaft over said hub and said segments, and means on said shaftretaining said 4 disk, said hub and said retaining plate in assembledrelation.

CHARLES W. SCHOT'I.

' REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 423,394 Saxton Mar. 11, 1890445,291 Treat Jan. 2'7, 1891 469,931 Briggs Mar. 1, 1892 631,028McConville Aug. 15, 1899 1,443,164 Bracken Jan. 23, 1923 1,540,081Manischewitz June 2, 1925 1,599,461 Dinkelman Sept. 14, 1926 2,424,006Verrinder July 15, 194'! 2,447,991 Stempel Aug. 24, 1948

